"25 years and our BSB Army always comes through! Thank you, we are so grateful. Here's to whatever 'trending worldwide' looks like 25 years from now! We'll be right there with you," the boy band wrote.

"Our hearts feel like they're about to burst but they're definitely not breaking...... because #DontGoBreakingMyHeart is the number one trending topic in the US! Thank you!!!!!" the group added.

The Backstreet Boys will kick off another leg of their Las Vegas residency in July.